In situ sampling techniques in environmental air analysis. Final report.

Details

• Personal Author:
  Mark HB
• Description:
  Adsorbent sampling matrices specific for hydrogen-sulfide (7783064) (H2S) and acrylonitrile (107131) were assessed. Cadmium(II)/exchanged zeolite was found to be effective in adsorbing H2S in the concentration ranges necessary for personal monitoring. H2S reacted with the matrix to produce cadmium-sulfide (1306236) (CdS). Immobilized CdS was converted to methylene-blue (61734), and then determined spectrophotometrically. The detection limit was 35microg H2S could be determined. Known amounts of H2S adsorbed on the zeolite were analyzed by a variety of techniques including diffuse reflectance Fourier transform infrared, X-ray fluorescence, combustion analysis followed by non dispersive infrared, and photoacoustic spectroscopy. Photoacoustic spectroscopy yielded the greatest general potential and sensitivity. A titanium/exchanged zeolite was found to be effective for adsorbing acrylonitrile. After adsorption, the zeolite was pressed into a potassium-bromide pellet and the sample was analyzed by transmission infrared spectroscopy. Concentrations of acrylonitrile up to 50 parts per million could be determined. [Description provided by NIOSH]
• Content Notes:
  in NTRL, no pdf
• Subjects:
  Environmental Monitoring Hazardous Substances Occupational Health Safety Spectrum Analysis
• Keywords:
  NIOSH-Grant; Toxic-vapors; Analytical-methods; Quantitative-analysis; Measurement-equipment; Trace-analysis; Spectrographic-analysis; Air-quality-measurement; Safety-equipment
• Series:
  Grant Final Reports
• Publisher:
  University of Cincinnati
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Final Grant Report
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OEP - Office of Extramural Programs
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-7
• NIOSHTIC Number:
  nn:00134971
• NTIS Accession Number:
  PB84241439
• Citation:
  Cincinnati OH: University of Cincinnati, 1980 Jan; :1-7
• CAS Registry Number:
  Acrylonitrile (CAS RN 107-13-1) ; Cadmium sulfide (CAS RN 1306-23-6) ; Hydrogen sulfide (CAS RN 7783-06-4) ; Methylene blue (CAS RN 61-73-4)
• Federal Fiscal Year:
  1980
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  False
• Start Date:
  19770801
• Source Full Name:
  In situ sampling techniques in environmental air analysis. Final report
• End Date:
  19810930
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/246077/cdc_246077_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]